What category is the 1981 Yamaha XJ 750 Seca?

The 1981 Yamaha XJ 750 Seca has a Category of Sport touring.

What is the engine size of the 1981 Yamaha XJ 750 Seca?

The 1981 Yamaha XJ 750 Seca has a Capacity: of 748.00 ccm (45.64 cubic inches).

What type of engine does the 1981 Yamaha XJ 750 Seca have?

The 1981 Yamaha XJ 750 Seca has a Engine type of In-line four.

What is the engine power of the 1981 Yamaha XJ 750 Seca?

The 1981 Yamaha XJ 750 Seca has a Power of 82.00.

Is the 1981 Yamaha XJ 750 Seca air cooled or liquid cooled?

The 1981 Yamaha XJ 750 Seca has a Cooling system of Air.

How many gears does the 1981 Yamaha XJ 750 Seca have?

The 1981 Yamaha XJ 750 Seca has a Gearbox of 5-speed.

How much does the 1981 Yamaha XJ 750 Seca weigh?

The 1981 Yamaha XJ 750 Seca has a Weight incl. oil, gas, etc of 241.0 kg (531.3 pounds).

What is the top speed of the 1981 Yamaha XJ 750 Seca?

The 1981 Yamaha XJ 750 Seca has a Top speed of 204.0 km/h (126.8 mph).

Yamaha XJ 750 Seca - 1981 Specifications and Reviews

Name: 1981 Yamaha XJ 750 Seca
Brand: Yamaha
Rating: 4.8 (6 reviews)

The 1981 Yamaha XJ 750 Seca is a sport-touring middleweight that appeals to riders seeking responsive performance with practical everyday usability. Its air-cooled inline-four engine delivers smooth acceleration and reliable power, while shaft drive and manageable weight make it ideal for both commuting and weekend rides. Best known for combining accessible sportiness with touring capability in an affordable package.

⇄ Compare against another bike 📅 All Years

1982

1981

❮❯

Add/Upload pictures for this motorcycle

General information
Category	Sport touring
Year	1981
Model	Yamaha XJ 750 Seca
Engine and Transmission Specifications
Transmission typefinal drive	Shaft drive (cardan)
Gearbox	5-speed
Cooling system	Air
Fuel control	DOHC
Valves per cylinder	2
Bore x stroke	65.0 x 56.4 mm (2.6 x 2.2 inches)
Compression	9.2:1
Power	82.00
Stroke	4
Engine type	In-line four
Capacity:	748.00 ccm (45.64 cubic inches)

Physical measures and capacities
Weight incl. oil, gas, etc	241.0 kg (531.3 pounds)

Yamaha XJ 750 Seca dimensions and frame
Rear brakes	Expanding brake
Front brakes	Dual disc
Rear tyre dimensions	120/90-18
Front tyre dimensions	3.25-19
Speed and acceleration
Top speed	204.0 km/h (126.8 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	18.00 litres (4.76 gallons)

Performance Profile & Rider Fit

82 hp

Peak Power

4.2s

0-60 mph

126.8 mph

Top Speed

Best For

Track45%

City55%

Cornering60%

Daily Riding65%

Touring72%

Passenger65%

Rider Profile

Best For	This bike suits an intermediate to experienced rider comfortable with a torquey air-cooled four and shaft-drive handling characteristics.
Purpose	Built as an early sport tourer, it blends respectable straight-line performance with a shaft-driven drivetrain suited to mile-munching rather than track days.
Rider Fit	At 241 kg with a moderate seat height typical of early 80s UJMs, it demands a rider of average-to-above-average strength for low-speed maneuvering.
Character	It has the classic early-80s inline-four charm, with DOHC performance and a shaft drive giving it a smooth, low-maintenance touring feel over raw sportiness.
Not Ideal For	It is not for riders seeking modern sportbike agility, off-road capability, or the lightest possible city commuter.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.